urn:opendaylight:params:xml:ns:yang:netvirt:sfc?module=netvirt-sfc&revision=2014-12-10 urn:opendaylight:params:xml:ns:yang:controller:md:sal:binding?module=opendaylight-md-sal-binding&revision=2013-10-28 prefix:netvirt-sfc netvirt-sfc-default binding:binding-broker-osgi-registry binding-osgi-broker